Part 117
I haven't been on APC for a while, so I apologize for trampling on what is probably already a dead horse, but I was reading ALPA's guide to Part 117. I'm amazed at how many "unforseen circumstances" excusals (and other loopholes) seem to be have wormed their way into what was originally a very straightforward rule.
And if you're West Coast-based, and you're doing an early AM flight back, just suck it up: you haven't gone through 60 degrees, so you're not tired.
Legal to start, legal to finish, Part Deux.